Intangibles (Details 3) $ in Thousands	9 Months Ended
	Sep. 30, 2015 USD ($)
Future aggregate net amortization of acquired lease intangibles (Net decrease in Revenue)
2015	$ (641)
2016	(2,523)
2017	(1,969)
2018	(1,662)
2019	(1,504)
Thereafter	(7,113)
Total	$ (15,412)
Weighted average amortization period for lease intangible liability	12 years
Future aggregate net amortization of acquired lease intangibles (Net Increase in Expenses)
2015	$ 4,896
2016	18,904
2017	16,991
2018	15,545
2019	12,484
Thereafter	62,942
Total	$ 131,762
Weighted average amortization period for lease intangibles	7 years